mysql_fetch_array()/mysql_fetch_assoc()/mysql_fetch_row()/mysql_num_rows etc… expects parameter 1 to be resource

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鱼传尺愫
鱼传尺愫 2020-11-21 06:25

I am trying to select data from a MySQL table, but I get one of the following error messages:

mysql_fetch_array() expects parameter 1 to be resource,

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  •  悲哀的现实
    2020-11-21 07:19

    Try the following code. It may work fine.

    $username = $_POST['username'];
    $password = $_POST['password'];
    $result = mysql_query("SELECT * FROM Users WHERE UserName ='$username'");
    
    while($row = mysql_fetch_array($result))
    {
        echo $row['FirstName'];
    }
    

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